anti-racing

Science Dictionary
race   (rās)  Pronunciation Key 
    1. An interbreeding, usually geographically isolated population of organisms differing from other populations of the same species in the frequency of hereditary traits. A race that has been given formal taxonomic recognition is known as a subspecies.

    2. A breed or strain, as of domestic animals.

  1. Any of several extensive human populations associated with broadly defined regions of the world and distinguished from one another on the basis of inheritable physical characteristics, traditionally conceived as including such traits as pigmentation, hair texture, and facial features. Because the number of genes responsible for such physical variations is tiny in comparison to the size of the human genome and because genetic variation among members of a traditionally recognized racial group is generally as great as between two such groups, most scientists now consider race to be primarily a social rather than a scientific concept.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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